3g3q

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[[Image:3g3q.png|left|200px]]
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==Crystal structure of a eukaryotic polyphosphate polymerase in complex with a phosphate polymer==
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<StructureSection load='3g3q' size='340' side='right' caption='[[3g3q]], [[Resolution|resolution]] 2.64&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3g3q]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3G3Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3G3Q FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3g3o|3g3o]], [[3g3r|3g3r]], [[3g3t|3g3t]], [[3g3u|3g3u]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">J1345, PHM3, VTC4, YJL012C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3g3q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3g3q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3g3q RCSB], [http://www.ebi.ac.uk/pdbsum/3g3q PDBsum]</span></td></tr>
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</table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/g3/3g3q_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Polyphosphate (polyP) occurs ubiquitously in cells, but its functions are poorly understood and its synthesis has only been characterized in bacteria. Using x-ray crystallography, we identified a eukaryotic polyphosphate polymerase within the membrane-integral vacuolar transporter chaperone (VTC) complex. A 2.6 angstrom crystal structure of the catalytic domain grown in the presence of adenosine triphosphate (ATP) reveals polyP winding through a tunnel-shaped pocket. Nucleotide- and phosphate-bound structures suggest that the enzyme functions by metal-assisted cleavage of the ATP gamma-phosphate, which is then in-line transferred to an acceptor phosphate to form polyP chains. Mutational analysis of the transmembrane domain indicates that VTC may integrate cytoplasmic polymer synthesis with polyP membrane translocation. Identification of the polyP-synthesizing enzyme opens the way to determine the functions of polyP in lower eukaryotes.
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{{STRUCTURE_3g3q| PDB=3g3q | SCENE= }}
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Catalytic core of a membrane-associated eukaryotic polyphosphate polymerase.,Hothorn M, Neumann H, Lenherr ED, Wehner M, Rybin V, Hassa PO, Uttenweiler A, Reinhardt M, Schmidt A, Seiler J, Ladurner AG, Herrmann C, Scheffzek K, Mayer A Science. 2009 Apr 24;324(5926):513-6. PMID:19390046<ref>PMID:19390046</ref>
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===Crystal structure of a eukaryotic polyphosphate polymerase in complex with a phosphate polymer===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_19390046}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[3g3q]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3G3Q OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:019390046</ref><references group="xtra"/>
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[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Hothorn, M.]]
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[[Category: Hothorn, M]]
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[[Category: Scheffzek, K.]]
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[[Category: Scheffzek, K]]
[[Category: Biosynthetic protein]]
[[Category: Biosynthetic protein]]
[[Category: Membrane]]
[[Category: Membrane]]

Revision as of 10:09, 3 December 2014

Crystal structure of a eukaryotic polyphosphate polymerase in complex with a phosphate polymer

3g3q, resolution 2.64Å

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